Apparatus for aerating, purifying, and cooling milk.



lll l 1 Ill PATENTED JAN. 30, 1906.

D. N. GIPFORD 6; J HALL. APPARATUS FOR AERATING, PURIFYING, AND COOLINGMILK.

APPLICATION FILED FEB-1,1905.

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DEXTER N. GIFFORD AND JAMES HALL, OF BROOKLYN, NEW YORK.

Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed February 1, 1905. Serial No. 243,668.

To all 1071/0717 it may concern.-

Be it known that we, DEXTER N. Grrronn and JAMEs HALL, citizens of theUnited States, residing at Brooklyn, in the county of Kings and State ofNew York, have invented certain new and useful Improvements in Apparatusfor Aerating, Purifying, and Cooling I Milk, of which the following is aspecification,

such as will enable those skilled in theart to which it appertains tomake and use the same.

This invention relates to apparatus for aerating, purifying, and coolingmilk; and the object of the invention is to provide an improvedapparatus of this class which. is simple in construction and operationand comparatively inexpensive and by means of which the milk in additionto being cooled and aerated is also thoroughly purified and all animaltaste or odor removed therefrom.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof our improvement are desig nated by suitable reference characters ineach of the views, and in which Figure 1 is a diagrammatical side viewof the apparatus which we employ, and Fig. 2 a section on the line 2 2of 1.

In the practice of our invention we provide an ordinary air-pump a, withone side of which is connected an upright pipe I), which is preferablyof considerable height in order that pure air may be supplied to ourimproved apparatus, said pipe being preferably of from twenty to fiftyfeet high, according to location of the apparatus, and placed in thispipe, preferably at or near the bottom portion thereof, is anair-strainer 1)' Connected with the opposite side of the pump a is apipe 0, which is also connected with a water-tank d at or near thebottom portion of said tank, and the pipe 0 is preferably providedbetween the tank d and the ump a with an upwardly'directed bend or 00p 0which extends above the height of the water in the tank 61, and saidtank is also provided, preferably centrally thereof or below the centerthereof, with atransverse perforated plate d Connected with the topportion of the tank (I is a pipe 0, and arranged adjacent to the tank atis a eoolerf, comprising a tank of suitable dimensions and considerableheight, and the'tankf is provided with a water-inlet pipe pipe f 2 and awater-outlet pipe 1 Arranged vertically in the tank or cooler f is aZigzag passage g, which in the form of construction shown is composed ofa flattened tube, said tube being flattened so as to provide a widenarrow passage therethrough; but said Zigzag passage may be formed inother ways and may consist of parallel inclined plates secured to theopposite sides of the tank f.

Arranged adjacent to and over the tank or cooler f is a milk-supply tankh, and arranged adjacent to and below the tank or cooler f is amilk-receiver tank c', and the milk-supply tank it is connected with theupper end of the zigzag passage 9 by a tube 7L2, while the milkreceivertank i is connected with the lower end of said passage by a pipe i, inwhich is preferably placed a trap The tube a, which is connected withthe water-tank d in the form of construction shown passes laterally intothe bottom of the cooler f and communicates with the bottom leg of thezigzag passage g, and this connection is so made that milk in passingthrough the passage will not flow into the tube 6. The zigzag passage 9'is so formed that the milk in passing therethrough will flow off or overthe corners thereof at the angles of each bend thereof, and thisformation of said passage facilitates the operation of the apparatus, ashereinafter described.

In practice the tank f is filled with cold water, which is suppliedthereto by the pipe f and said water may be drawn off whenever desiredthrough the pipe and the flow of water into and from said pipe may bemade continuous, if desired, and the pipesf and f 3 will in practice heprovided with valves in the usual manner to control the flow of watertherethrough.

The milk-supply tank 7t may be of any desired shape, size, or capacity,and the pipe k may be provided, if desired, With a valve in the ordinarymanner.

In the operation of the apparatus the milk is poured into the tank 7tand flows through the pipe h into the cooler or into and through thezigzag passage g, which forms a part of the cooler, and out through thepipe i into the milk-receiver tank a, from which it may be drawn througha faucet i. When the milk is placed in the tank It or prior thereto, thepump a is also put in operation, and the air supplied to the pumpthrough the pipe I) is forced through the pipe 0 into the bottom of thewatertank (1 and passes upwardly through the water therein and throughthe IIO perforated plate (1 and through the pipe 6 into the bottomportion of the zigzag passage 9 and up through the said passage g, andin the form of construction shown this air also passes through the tube7L2 into the tank It and up through the milk in said tank. It will thusbe seen that when the milk is passing through the zigzag passage gin thedownward direction the air is passed upwardly through said passage, andthe form of said passage is such that the air is passed through the milkat the corners or bends in the zigzag passage, and in this way the milkis thoroughly aerated and purified, and at the same time the milk isthoroughly cooled, the cooling being accomplished both by the air and bythe cold water in the cooler or tank f, and the water supplied to thetank (1 may also be cooled or kept cold in any desired manner.

Our improved method of and apparatus for treating milk in addition tocooling and aerating the milk also thoroughly purifies the milk andremoves therefrom any animal taste or odor that the milk may possess,and milk treated in this manner will keep longer or remain sweet longerthan when treated by the usual method or by ordinary forms of apparatus.

Having fully described our invention, what we claim as new, and desireto secure by Letters Patent, is

1. In an apparatus for treating milk in the manner described, a closedcooler-tank pro vided with an inclosed zigzag passage which extendstherethrough, a water-tank arranged adjacent to the cooler-tank and thetop portion of which is in communication with one end of said passage,an air-pump in communication with the bottom of the water-tank and anair-supply tube in communication with said pump, substantially as shownand described.

2. In an apparatus for treating milk in the manner described, a closedcooler-tank provided with an inclosed zigzag passage which extendstherethrough, a water-tank arranged adjacent to the cooler-tank and thetop portion of which is in communication with one end of said passage,an air-pump in communication with the bottom of the water-tank and anair-supply tube in communication with said pump, said air-supply tubebeing also provided with means for puri 'ng air, supstantially as shownand described.

In testimony that we claim the foregoing as our invention we have signedour names, in presence of the subscribing witnesses, this 31st day ofJanuary, 1905.

DEXTER N. GIFFORD. JAMES HALL Witnesses CHARLES J AOHENS, GEORGETERPENING.

